TYPO3 Core

Flash messages rendered by EXT:fluid VH are cached and rendered from cache on page access. This was not the case before TYPO3 7.3 and is not the case when using TYPO3 6.2.

Example
User creates an object, a flash message is added and the user is redirected to the list view.
The flash message will be cached and displayed to any user until the cache of the page is flushed somehow.

Previously the page cache was disabled whenever the flash messages VH was used within a cached plugin.

Cause of this is a removed no cache config in the flash message VH, see marked line:

https://github.com/TYPO3/TYPO3.CMS/commit/70a7ed3a9a8e4462618c81a47122d6825ab7d70f#diff-c458c84cec13de48e7fabedab0c4e47aL114

This behavior change is undocumented and should be considered breaking.

• Related commit:
  https://git.typo3.org/Packages/TYPO3.CMS.git/commit/70a7ed3a9a8e4462618c81a47122d6825ab7d70f
• Slack discussion:
  https://typo3.slack.com/archives/typo3-cms-coredev/p1452592222001699